International
X Y Z
Class Rules
200x
The XYZ was designed in 19… by … … and was adopted as an
international/recognised class in … .
Index
Class Name Class Rules 200x 1
Part I – Administration
Section A – General
A.1Language ...... x
A.2Abbreviations ...... x
A.3Authorities...... x
A.4Administration of the Class ... x
A.5ISAF Rules ...... x
A.6Class Rules Variations ...... x
A.7Class Rules Amendments ..... x
A.8Class Rules Interpretation ..... x
A.9International Class Fee and
ISAFBuilding Plaque ...... x
A.10Sail Numbers ...... x
A.11Hull Certification ...... x
A.12Initial Hull Certification ...... x
A.13Validity of Certificate ...... x
A.14Hull Re-Certification ...... x
A.15Retention of Certification
Documentation ...... x
Section B – Boat Eligibility
B.1Class Rules and Certification .. x
B.2Flotation Check ...... x
B.3Class Association Sticker ..... x
Part II – Requirements and Limitations
Section C – Conditions for Racing
C.1General ...... x
C.2Crew ...... x
C.3Personal Equipment ...... x
C.4Advertising ...... x
C.5Portable Equipment ...... x
C.6Boat ...... x
C.7Hull...... x
C.8Hull Appendages...... x
C.9Rig ...... x
C.10Sails ...... x
Section D– Hull
D.1Parts ...... x
D.2General ...... x
D.3Hull Shell ...... x
D.4Deck ...... x
D.5Buoyancy Tanks ...... x
D.6Gunwale Rubbing Strakes .... x
D.7Bulkheads ...... x
D.8Thwarts ...... x
D.9Assembled Hull...... x
Section E – Hull Appendages
E.1Parts ...... x
E.2General ...... x
E.3Keel/Centreboard ...... x
E.4Rudder Blade, Rudder Stock
and Tiller ...... x
Section F – Rig
F.1Parts ...... x
F.2General ...... x
F.3Mast ...... x
F.4Boom ...... x
F.5Spinnaker Pole ...... x
F.6Bowsprit ...... x
F.7Standing Rigging ...... x
F.8Running Rigging ...... x
Section G – Sails
G.1Parts ...... x
G.2General ...... x
G.3Mainsail ...... x
G.4Headsail ...... x
G.5Gennaker ...... x
G.6Spinnaker ...... x
Part III – APPENDICES
...... x
Class Name Class Rules 200x 1
Class Name Class Rules 200x 1
INTRODUCTION
This introduction only provides an informal background and the International XYZ Class Rules proper begin on the next page.
XYZ hulls, hull appendages, rigs and sails are measurement/manufacturing controlled.
XYZ hulls, hull appendages, rigs and sails shall only be manufactured by XXX – in the class rules referred to as licensed manufacturers. Equipment is required to comply with the InternationalXYZBuilding Specification and is subject to an ISAF approved manufacturing control system.
XYZ hulls, hull appendages, rigs and sails may, after having left the manufacturer, only be altered to the extent permitted in Section C of the class rules.
Owners and crews should be aware that compliance with rules in Section C is NOT checked as part of the certification process.
Rules regulating the use of equipment during a race are contained in Section C of these class rules, in ERS Part I and in the Racing Rules of Sailing.
Note: Where the class permits IHC it should be mentioned here which items may be produced under IHC.
PLEASE REMEMBER:
THESE RULES ARE CLOSED CLASS RULES WHERE IF IT DOES NOT SPECIFICALLY SAY THAT YOU MAY – THEN YOU SHALL NOT.
COMPONENTS, AND THEIR USE, ARE DEFINED BY THEIR DESCRIPTION.
Part I – Administration
Section A – General
A.1Language
A.1.1The official language of the class is English and in case of dispute over translation the English text shall prevail.
A.1.2The word “shall” is mandatory and the word “may” is permissive.
A.1.3Except where used in headings, when a term is printed in “bold” the definition in the ERS applies and when a term is printed in “italics” the definition in the RRS applies.
A.2Abbreviations
A.2.1ISAFInternational Sailing Federation
MNAISAF Member National Authority
ICAInternational … Class Association
NCANational Class Association
ERSEquipment Rules of Sailing
RRSRacing Rules of Sailing
OSROffshore Special Regulations
A.3Authorities
A.3.1The international authority of the class is the ISAF which shall co-operate with the ICA in all matters concerning these class rules.
A.3.2Notwithstanding anything contained herein, the certification authority has the authority to withdraw a certificate and shall do so on the request of the ISAF.
A.4Administration of the Class
A.4.1ISAF has delegated its administrative functions of the class to MNAs. The MNA may delegate part or all of its functions, as stated in these class rules, to an NCA.
A.4.2In countries where there is no MNA, or the MNA does not wish to administrate the class, its administrative functions as stated in these class rules shall be carried out by the ICA which may delegate the administration to an NCA.
A.5Class Rules CHANGES
A.5.1At Class Events – see RRS 89.1.d) – ISAF Regulation 26.5(f) applies. At all other events RRS 87 applies.
A.6Class Rules Amendments
A.6.1Amendments to these class rules are subject to the approval of the ISAF in accordance with the ISAF Regulations.
A.7Class Rules Interpretation
A.7.1Interpretation of class rules shall be made in accordance with the ISAF Regulations.
A.8International Class Fee and ISAF BUILDING Plaque
A.8.1The licensed hull builder shall pay the International Class Fee.
A.8.2ISAF shall, after having received the International Class Fee for the hull, send the ISAF Building Plaque and a measurement form to the licensed hull builder.
A.9Sail Numbers
A.9.1Sail numbers shall be issued by the MNA.
A.9.2Sail numbers shall be issued in consecutive order starting at “1”.
A.10Hull Certification
A.10.1A certificate shall record the following information:
(a)Class
(b)Certification authority
(c)Sail number issued by the certification authority
(d)Owner
(e)Hull identification (See the Guide to Standard Class Rules)
(f)Builder/Manufacturers details
(g)Date of issue of initial certificate
(h)Date of issue of certificate
A.11Initial Hull CERTIFICATion
A.11.1For a certificate to be issued to hull not previously certified:
(a)Certification control shall be carried out by the official measurer who shall complete the appropriate documentation.
(b)The documentation and certification fee, if required, shall be sent to the certification authority.
(c)Upon receipt of a satisfactorily completed documentation and certification fee, if required, the certification authority may issue a certificate.
A.12Validity of Certificate
A.12.1A hull certificate becomes invalid upon:
(a)the change to any items recorded on the hull certificate as required under A.11.
(b)the date of expiry,
(c)withdrawal by the certification authority,
(d)the issue of a new certificate,
A.13Hull RE-CERTIFICATION
A.13.1The certification authority may issue a certificate to a previously certified hull:
(a)when it is invalidated under A.13.1(a) or (b), after receipt of the old certificate,and certification fee if required.
(b)when it is invalidated under A.13.1 (c), at its discretion.
(c)in other cases, by application of the procedure in A.12.
A.14Retention of certification documentation
A.14.1The certification authority shall:
(a)retain the original documentation upon which the current certificate is based.
(b)upon request, transfer this documentation to the new certification authority if the hull is exported.
Section B – Boat Eligibility
For a boat to be eligible for racing, it shall comply with the rules in this section.
B.1Class Rules and Certification
B.1.1The boat shall:
(a)be in compliance with the class rules.
(b)have a valid hull certificate.
(c)have valid certification marks as required
B.2Flotation CheckS
B.2.1The hull certificate shall carry a satisfactorily flotation check confirmation.
B.2.2A race committee may require that a boat shall pass a flotation test in accordance with Appendix … .
B.3Class Association markings
B.3.1A valid Class Association Sticker, if required by the NCA or the ICA, shall be affixed to the hull in a conspicuous position.
or
B.3.1A valid Class Association Sticker, if required by the NCA or the ICA, shall be affixed to the hull certificate.
B.3.2Sails shall carry a Class Association Sail Label.
Part II – Requirements and Limitations
The crew and the boat shall comply with the rules in Part II when racing. In case of conflict Section C shall prevail.
The rules in Part II are closed class rules. Certification control and equipment inspection shall be carried out in accordance with the ERS except where varied in this Part.
(The text “The rules in Part II are closed class rules” to be used if all Sections in Part II are closed class rules. Otherwise it should be stated under “Rules” in each section whether the rules in that section are “closed class rules” or “open class rules”.)
Section C – Conditions for Racing
C.1General
C.1.1Rules
(a)RRS … shall not apply.
(b)RRS … is/are changed as follows: … .
(c)The ERS Part I – Use of Equipment shall apply.
(d)ERS … is/are changed as follows: … .
C.2Crew
C.2.1Limitations
(a)The crew shall consist of … persons.
(b)No crew member shall be substituted during an event of less than … consecutive days, unless … .
(c)Age … .
(d)
C.2.2WEIGHTS
minimum / maximumThe total weight of the crew dressed in underwear / kg / kg
C.3Personal Equipment
C.3.1Mandatory
(a)The boat shall be equipped with a personal floatation devicefor each crew member to the minimum standard ISO 12402-5 (CE 50 Newtons), or USCG Type III, or AUS PFD 1.
(Blue items need to be checked with the territories)
Or
(a)The boat shall be equipped to the minimum standard ISAF Offshore Committee Special Regulations category IV.
(b)
C.3.2Optional
(a)Hiking harness. The weight shall not exceed … kg.
(b)Trapeze harness. The weight shall not exceed … kg.
(c)
C.3.3Total Weight
The total weight of worn equipment shall not exceed … kg.
C.4Advertising
C.4.1Limitations
Advertising shall only be displayed in accordance the ISAF Advertising Code. (See ISAF Regulation 20)
C.5Portable Equipment
C.5.1MANDATORY
(a)FOR USE
(1)Safety equipment …
(2)One hand bailer or bucket
(3)One anchor of not less than … kg in weight and with not less than …m of line of not less than …mm in diameter
(4)
(b)NOT FOR USE
(1)Towing rope minimum …m long of not less than …mm in diameter.
(2)One paddle minimum …mm long and with a blade area of minimum …m2
(3)One outboard engine
(4)
C.5.2OPTIONAL
(a)FOR USE
(1)Electronic or mechanical timing devices
(2)One magnetic compass
(3)Mooring line
(4)Water Bottle Holder
(5)Wind Indicators
(6)etc.
(b)NOT FOR USE
(1)Electronic navigation devices
(2)One outboard engine
(3)Mobile Telephone
(4)
C.6Boat
C.6.1Modifications, maintenance and repair
(a)
C.6.2DIMENSIONS
minimum / maximummm / mm
C.6.3WEIGHT
minimum / maximumThe weight of the boat in dry condition / kg / kg
The weight shall be taken excluding sails and all portable equipment as listed in C.5.
C.6.4Corrector Weights
(a)Corrector weights of … shall be permanently fastened to … when the boat weight is less than the minimum requirement.
(b)The total weight of such corrector weights shall not exceed … kg. See also rules A.16.4 and B.1.1.
(c)
C.6.5Flotation
(a)The hull shall be fully decked and/or have flotation element(s).
(b)Fully decked hulls shall comply with ISO 11812 and ISO 12216.
(c)Flotation elements shall comply with ISO 12217-3 Annex C.
(d)Hulls with air tank(s) as flotation element(s) shall additionally comply with ISO 12217-3 Annex D, by test or calculation, except that the largest air tank shall not be included as a flotation element.
C.7Hull
C.7.1Modifications, maintenance and repair
(a)
C.7.2Fittings
(a)USE
(1)Inspection hatch covers and drainage plugs shall be kept in place at all times.
(2)
C.7.3limitations
(a)
C.8Hull Appendages
C.8.1Modifications, Maintenance and repair
(a)
C.8.2Fittings
(a)USE
(1)
C.8.3Limitations
(a)Only one centreboard/keel and one rudder bladeshall be used during an event of less than … consecutive days, except when a hull appendage has been lost or damaged beyond repair.
(b)
C.8.4Keel/Centreboard
(a)DIMENSIONS
minimum / maximumMaximum projection from the bottom of the hull / mm / mm
(b)USE
(1)The keel shall be fixed down
(2)
C.8.5Rudder
(a)DIMENSIONS
minimum / maximummm / mm
(b)USE
(1)The rudder blade shall be in its fully lowered position. However for races sailed in shallow water the sailing instructions may prescribe that this rule shall not apply.
(2)
C.9Rig
C.9.1Modifications, Maintenance and repair
(a)
C.9.2Fittings
(a)USE
(1)
C.9.3Limitations
(a)Only one set of spars and standing rigging shall be used during an event, except when an item has been lost or damaged,and the race committee has approved the substitution.
(b)
C.9.4Mast
(a)DIMENSIONS
minimum / maximumIntersection of the fore side of the spar and upper surface of the deck to . / mm / mm
(b)USE
(1)The spar shall be stepped in the mast step in such a way that the heel shall not capable of moving more than … mm.
(2)
C.9.5Boom
(a)DIMENSIONS
minimum / maximumLimit markwidth / mm / -
Outer point distance / mm
(b)USE
(1)The intersection of the aft edge of the mast spar and the top of the boom spar, each extended as necessary, shall not be below the upper edge of the mast lower limit mark when the boom spar is at 90° to the mast spar.
(2)
C.9.6Spinnaker Pole/Retracting Bowsprit
(a)USE
(1)
C.9.7Standing Rigging
(a)DIMENSIONS
minimum / maximumForetriangle base / mm / mm
Foretriangle/Forestay height / mm / mm
(b)USE
(1)Rigging links and rigging screws shall not be adjusted.
(2)
C.9.8Running Rigging
(a)USE
(1)The mainsail sheet shall be led … .
(2)The headsail sheet shall be led … .
(3)The spinnaker sheet and spinnaker guy shall be led … .
(4)The spinnaker pole topping lift shall be led … .
(5)The spinnaker pole foreguy shall be led … .
(6)The bowsprit setting and retractions lines shall be led … .
(7)The kicking strap shall be led … .
(8)The mainsail outhaul shall be led … .
(9)The mainsail Cunningham control shall be led … .
(10)
C.10Sails
C.10.1Modifications, Maintenance and repair
(a)Sails shall not be altered in any way except as permitted by these class rules.
(b)Routine maintenance such as … is permitted without re-measurement and re-certification.
(c)Battens may be placed in the batten pockets
(d)
C.10.2Limitations
(a)Not more than … mainsails, … jibs, … genoa 1, … genoa 2, … gennakers and … spinnakers shall be carried aboard.
(b)Not more than … mainsails, … jibs, … genoa 1, … genoa 2, … gennakers and … spinnakers shall be used during an event of less than … consecutive days, except when a sail has been lost or damaged beyond repair.
(c)
C.10.3Mainsail
(a)IDENTIFICATION
The national letters and sail numbers shall comply with the RRS except where prescribed otherwise in these class rules.
(Not to be included here if this is covered in Section G and thereby checked in connection with certification control)
(b)USE
(1)The sail shall be hoisted on a halyard. The arrangement shall permit hoisting and lowering of the sailwhilst afloat.
(2)The highest visible point of the sail, projected at 90° to the mast spar, shall not be set above the lower edge of the mast upperlimit mark. The intersection of the leech and the top of the boom spar, each extended as necessary, shall not be behind the fore side of the boom outer limit mark.
(3)Luff and foot bolt ropes shall be in the spar grooves or tracks.
(4)
C.10.4Jib
(a)USE
(1)
C.10.5GenOa
(a)IDENTIFICATION
The sail number shall comply with the RRS except where prescribed otherwise in these class rules.
(Not to be included here if this is covered in Section G and thereby checked at certification control. Use only when the genoa can overlap the mast as described in the RRS.)
(b)USE
(1)
C.10.6Gennaker
(a)IDENTIFICATION
The sail numbers shall comply with the RRS except where prescribed otherwise in these class rules.
(Not to be included here if this is covered in Section G and thereby checked at certification control. Use only when the gennaker can overlap the mast as described in the RRS.)
(b)USE
(1)
C.10.6Spinnaker
(a)IDENTIFICATION
The sail numbers shall comply with the RRS except where prescribed otherwise in these class rules.
(Not to be included here if this is covered in Section G and thereby checked at certification control.)
(b)USE
(1)
Section D – Hull
D.1Parts
D.1.1Mandatory
(a)Hull shell
(b)Deck
(c)Buoyancy Tanks
(d)Gunwale Rubbing Strakes
(e)Bulkheads
(f)Thwarts
(g)
D.1.2Optional
(a)Bulkheads
(b)Thwarts
(c)
D.2General
D.2.1Rules
(a)The hull shall comply with the class rules in force at the time of initial certification.
(b)
D.2.2Certification
See Rule A.13.
D.2.3Modifications, Maintenance and repair
(a)The hull shell, deck, bulkheads, double bottom. … and … shall not be altered in any way except as permitted by these class rules.
(b)Holes not bigger than necessary for the installation fittings and passage of lines may be made in the ….
(c)Routine maintenance such as painting and polishing is permitted without re-measurement and re-certification.
(d)If any hull moulding is repaired in any other way than described in D.2.3(c), an official measurer shall verify on the certificate that the external shape is the same as before the repair and that no substantial stiffness, or other, advantage has been gained as a result of the repair. The official measurer shall also describe the details of the repair on the certificate.
D.2.4Definitions
(a)HULL DATUM POINT
The hull datum point is … .
(b)
D.2.5Identification
(a)The hull shall carry the ISAF Plaque permanently placed … .
(b)
D.2.6Builders
(a)The hull shall built by a builder licensed by ISAF.
(b)All moulds shall be approved by ISAF.
(c)
D.3Hull Shell
D.3.1Materials
(a)The hull shell shall be built from … .
(b)
D.3.2Construction
(a)
D.4Deck
D.4.1Materials
(a)The deck shall be built from … .
(b)
D.4.2Construction
(a)
D.5Buoyancy Tanks
D.5.1Construction
(a)Buoyancy equipment shall comprise of … .
(b)
D.6Gunwale and Rubbing Strakes
D.6.1Materials
(a)The rubbing strakes shall be …...
(b)
D.6.2Construction
(a)The rubbing strake shall run unbroken on each gunwale.
(b)
D.7Bulkheads
D.7.1Materials
(a)
D.7.2Construction
(a)
D.8Thwarts
D.8.1Materials
(a)
D.8.2Construction
(a)
D.9ASSEMBLED Hull
D.9.1Fittings
(a)MANDATORY
The following fittings shall be positioned in accordance with the measurement diagram:
(1)Stemhead fitting
(2)Forestay fitting
(3)Shroud plates
(4)Headsail tracks
(5)Mainsheet track with one traveller
(6)Mast step
(7)
(b)OPTIONAL
(1)Halyard winches or tensioners
(2)Mainsail sheet blocks, fairleads and cleats
(3)Mainsail Cunningham blocks, fairleads and cleats
(4)Maximum … headsail sheet winches
(5)Headsail sheet blocks, fairleads and cleats
(6)Headsail Cunningham blocks, fairleads and cleats
(7)Headsail Barber hauler fairleads, blocks and cleats
(8)Spinnaker sheet and guy fairleads, blocks and cleats
(9)Spinnaker Barber hauler fairleads, blocks and cleats
(10)Tiller lock
(11)Toe straps not capable of extending outboard
(12)Hand holds on/in deck
(13)Stowage clips for paddle(s), spinnaker pole, sail bags and other equipment
(14)One inspection hole in each buoyancy tank, provided that the watertight integrity of the buoyancy tank is maintained and covers are capable of resisting accidental dislodgement.
(15)Draining holes in buoyancy tanks, provided that the watertight integrity of the buoyancy tank is maintained and plugs are capable of resisting accidental dislodgement.
(16)Bilge pump(s) which may discharge through hull shell or deck
(17)Magnetic compasses
(18)Echo sounder
(19)Deck clips for cockpit cover and/or tent
(20)
D.9.2Dimensions
The keel line shall be taken as the intersection line from transom to stem of the hull shell and the hull centreplane.
The sections shall be taken as vertical, transverse planes at the following positions:
Section 1: at … mm from hull datum point as defined in D.2.3
Section 2: at … mm from hull datum point as defined in D.2.3
etc.
The baseline shall be on the centreplane of the hull at the at following vertical distances:
at the hull datum point as defined in D.2.3: … mm from the hull shell
at section … : … mm from the hull shell
minimum / maximumHull length / mm / mm
Vertical distance from baseline to underside of hull shell;
at section …
at section …
Vertical distance from baseline to underside of keel
at section …
Beam of hull, excluding rubbing strakes and fittings, at sheerline;
at section …
at section …
at section …
Longitudinal distance from hull datum point as defined in D.2.3;
to intersection of keel trailing edge and hull / mm / mm
to aft point of mast spar hole at deck / mm / mm
Longitudinal dimension of mast spar hole / mm / mm
Horizontal distance from centre of forestay attachment hole to forward end of hull / mm / mm
Longitudinal distance from hull datum point as defined in D.2.3 to centre of shroud plate holes
Transverse distance between centres of shroud plate holes
Gunwale rubbing strakes;
depth
width
distances from transom and forward end of hull, excluding stemhead fitting,
Overall height of mast step
Mainsheet track;
length
vertical height to top above / mm / mm
Headsail track length / mm
Inside diameter of buoyancy tank inspection holes / mm
Inside diameter of buoyancy tank draining holes / mm
D.9.3WeightS